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    <center>Scilab Function</center>
    <div align="right">Last update : April 1993</div>
    <p>
      <b>signm</b> -  matrix sign function</p>
    <h3>
      <font color="blue">Description</font>
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    <p>
    For square and Hermitian matrices <tt>
        <b>X=signm(A)</b>
      </tt> is matrix sign
    function.</p>
    <h3>
      <font color="blue">Examples</font>
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    <pre>

A=rand(4,4);B=A+A';X=signm(B);spec(B),spec(X)
 
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    <h3>
      <font color="blue">See Also</font>
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    <p>
      <a href="sign.htm">
        <tt>
          <b>sign</b>
        </tt>
      </a>,&nbsp;&nbsp;</p>
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